| Acetic
acid |
CAS
64-19-7 |
| CH3COOH |
RTECS
AF1225000 |
Synonyms
& Trade Names
Acetic acid (aqueous), Ethanoic acid, Glacial acetic acid (pure
compound), Methanecarboxylic acid [Note: Can be found in concentrations
of 5-8% in vinegar.] |
DOT
ID & Guide
2790 153 (10-80% acid)
2789 132 (>80% acid) |
Exposure
Limits |
NIOSH
REL: TWA 10 ppm (25 mg/m3) ST 15 ppm (37 mg/m3) |
| OSHA
PEL: TWA 10 ppm (25 mg/m3) |
| IDLH
50 ppm |
Conversion
1 ppm = 2.46 mg/m3 |
Physical
Description
Colorless liquid or crystals with a sour, vinegar-like odor. [Note:
Pure compound is a solid below 62°F. Often used in an aqueous
solution.] |
MW:
60.1
|
BP:
244°F
|
FRZ:
62°F
|
Sol:
Miscible
|
VP:
11 mmHg
|
IP:
10.66 eV
|
|
Sp.Gr:
1.05
|
Fl.P:
103°F
|
UEL(200°F):
19.9%
|
LEL:
4.0%
|
|
| Class
II Combustible Liquid: Fl.P. at or above 100°F and below 140°F. |
Incompatibilities
& Reactivities
Strong oxidizers (especially chromic acid, sodium peroxide & nitric
acid), strong caustics [Note: Corrosive to metals.] |
Personal
Protection & Sanitation
Skin: Prevent skin contact
(>10%)
Eyes: Prevent eye contact
Wash skin: When contaminated (>10%)
Remove: When wet or contaminated (>10%)
Change: No recommendation
Provide: Eyewash (>5%), Quick drench (>50%)
|
First
Aid
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator
Recommendations NIOSH/OSHA
Up to 50 ppm: (APF = 25) Any supplied-air
respirator operated in a continuous-flow mode£/(APF = 25)
Any powered, air-purifying respirator with organic vapor cartridge(s)£/(APF
= 50) Any chemical cartridge respirator with a full facepiece and
organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece
respirator (gas mask) with a chin-style, front- or back-mounted organic
vapor canister/(APF = 50) Any self-contained breathing apparatus with a
full facepiece/(APF = 50) Any supplied-air respirator with a full
facepiece
Emergency or planned entry into unknown
concentrations or IDLH conditions: (APF = 10,000) Any
self-contained breathing apparatus that has a full facepiece and is
operated in a pressure-demand or other positive-pressure mode/(APF =
10,000) Any supplied-air respirator that has a full facepiece and is
operated in a pressure-demand or other positive-pressure mode in
combination with an auxiliary self-contained positive-pressure breathing
apparatus
Escape: (APF = 50) Any air-purifying,
full-facepiece respirator (gas mask) with a chin-style, front- or
back-mounted organic vapor canister/Any appropriate escape-type,
self-contained breathing apparatus |
| Exposure
Routes inhalation, skin and/or eye contact |
| Symptoms
Irritation eyes, skin, nose, throat; eye, skin burns; skin
sensitization; dental erosion; black skin, hyperkeratosis;
conjunctivitis, lacrimation (discharge of tears); pharyngeal edema,
chronic bronchitis |
| Target
Organs Eyes, skin, respiratory system, teeth |
Fuente: U.S. Department of Health and Human Services
|
